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Mechanisms of DNA Damage and Repair

Professor Dave again, let’s learn about the mechanisms of DNA damage and repair. As we’ve learned, your DNA is the template from which everything inside you is built, so it’s incredibly important that nothing happens to this code. But your… Continue Reading

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How Do Lithium-Ion Batteries Work?

So you’re outside chasing around that rare Squirtle, when BAM–your phone dies! We can’t help you catch Pokémon, but we can give you three hacks for keeping your phone battery juiced. [Splash] Alright before we get into the hacks–here’s how… Continue Reading

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How to Do Solution Stoichiometry Using Molarity as a Conversion Factor | How to Pass Chemistry

Molarity is just another word for concentration. The formula for molarity is equal to the moles of your solute, divided by the liters of your solution. Now molarity can be used as a conversion factor because it has two different… Continue Reading

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Calculating Ion Concentrations in Solution

Hey it’s professor Dave, let’s learn how to calculate ion concentrations. We know how to do stoichiometric calculations, so let’s apply our knowledge to a specific task. We want to be able to calculate the concentration of various ions in… Continue Reading

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The SOLUTIONS Song -NOW WITH CLOSED CAPTION SO YOU CAN SING ALONG! Mr. Edmonds –

The SOLUTIONS Song -NOW WITH CLOSED CAPTION SO YOU CAN SING ALONG!  Mr. Edmonds  –

1) A solution is a type of mixture, that is homogeneous. It means that it’s the same throughout, the same throughout. It is the best mixed mixture, of two or more substances. When one of the components is water, it’s… Continue Reading

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Molarity Made Easy: How to Calculate Molarity and Make Solutions

Molarity Made Easy: How to Calculate Molarity and Make Solutions

Welcome to Molarity Made Easy, brought to you by Ketzbook In this video, we are going to learn how to do molarity calculations and how to make a solution of a certain molarity. But first, what is molarity? As the… Continue Reading

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True Solutions, Colloidal Solutions and Suspensions

True Solutions, Colloidal Solutions and Suspensions

When we dissolve a solute in a solvent that is if we add salt to water; salt is the solute, water is the solvent and we stir it, we get the final solution. So there are different types of solution… Continue Reading

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High Performance Liquid Chromatography HPLC

High Performance Liquid Chromatography HPLC

HPLC stands for high-performance liquid chromatography, but could equally well stand for high pressure liquid chromatography. It is used for separating mixtures either to analyze the mixture or to separate a required product from others in a reaction mixture. It… Continue Reading

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Supersaturated Solution

Supersaturated Solution

Hi, my name is Ronn Fieldhouse. I’m the Chemistry Curriculum Specialist here at PASCO scientific. Today I’d like to show you a supersaturated solution. Often, students have a hard time conceiving what this is. The definition is that it’s more… Continue Reading